Dibromochloromethane
Sonoma County Water Agency
Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
508
Samples
0
Samples exceeding legal limit (MCL)
408
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 3.12 ppb | 85 | 72 | ND - 5.18 ppb |
| 2015 | 2.52 ppb | 85 | 72 | ND - 4.43 ppb |
| 2016 | 2.53 ppb | 86 | 66 | ND - 4.97 ppb |
| 2017 | 1.41 ppb | 84 | 54 | ND - 3.89 ppb |
| 2018 | 2.50 ppb | 85 | 72 | ND - 5.34 ppb |
| 2019 | 2.26 ppb | 83 | 72 | ND - 4.57 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for dibromochloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-04 | 1610-027-0943 | 2.75 ppb |
| 2014-03-04 | 1610-032-0900 | 2.93 ppb |
| 2014-03-04 | 1610-033-0910 | 2.67 ppb |
| 2014-03-04 | 1610-039-0710 | 2.73 ppb |
| 2014-03-04 | 1610-040-1010 | 3.09 ppb |
| 2014-03-04 | 1610-041-1020 | 2.56 ppb |
| 2014-03-04 | 1610-042-1030 | 2.50 ppb |
| 2014-03-04 | 1610-043-1040 | 2.38 ppb |
| 2014-03-04 | 1610-044-0815 | 3.08 ppb |
| 2014-03-04 | 1610-045-0800 | 3.16 ppb |
| 2014-03-05 | 1610-029-0840 | 2.10 ppb |
| 2014-03-05 | 1610-030-0850 | 2.29 ppb |
| 2014-03-05 | 1610-031-0905 | 2.89 ppb |
| 2014-03-05 | 1610-034-0745 | 3.30 ppb |
| 2014-03-05 | 1610-035-0735 | 3.45 ppb |
| 2014-03-05 | 1610-037-0940 | 3.33 ppb |
| 2014-03-05 | 1610-049-1055 | 3.22 ppb |
| 2014-03-05 | 1610-053-1045 | 3.40 ppb |
| 2014-06-09 | 1610-027-0645 | 4.66 ppb |
| 2014-06-09 | 1610-032-0755 | 5.07 ppb |
| 2014-06-09 | 1610-033-0805 | 4.44 ppb |
| 2014-06-09 | 1610-039-0710 | 4.42 ppb |
| 2014-06-09 | 1610-040-1010 | 5.18 ppb |
| 2014-06-09 | 1610-041-1020 | 4.56 ppb |
| 2014-06-09 | 1610-042-1030 | 4.81 ppb |
| 2014-06-09 | 1610-043-1050 | 4.71 ppb |
| 2014-06-09 | 1610-044-0900 | 4.77 ppb |
| 2014-06-09 | 1610-045-0850 | 5.00 ppb |
| 2014-06-10 | 1610-029-0805 | 3.31 ppb |
| 2014-06-10 | 1610-030-0820 | 3.49 ppb |
| 2014-06-10 | 1610-031-0830 | 3.97 ppb |
| 2014-06-10 | 1610-034-0710 | 3.69 ppb |
| 2014-06-10 | 1610-035-0700 | 4.00 ppb |
| 2014-06-10 | 1610-037-0910 | 4.74 ppb |
| 2014-06-10 | 1610-049-1020 | 4.63 ppb |
| 2014-06-10 | 1610-053-1030 | 4.56 ppb |
| 2014-08-19 | 1610-001-0740 | ND |
| 2014-08-19 | 1610-003-0915 | ND |
| 2014-08-19 | 1610-008-0630 | ND |
| 2014-08-19 | 1610-012-0825 | ND |
| 2014-08-19 | 1610-015-1000 | ND |
| 2014-08-19 | 1610-018-0430 | ND |
| 2014-08-20 | 1610-002-0720 | ND |
| 2014-08-20 | 1610-007-0640 | ND |
| 2014-08-20 | 1610-017-1045 | ND |
| 2014-08-20 | 1610-019-0440 | ND |
| 2014-08-20 | 1610-020-0950 | ND |
| 2014-08-20 | 1610-050-0825 | ND |
| 2014-08-27 | 1610-006-0750 | ND |
| 2014-09-22 | 1610-027-0720 | 4.06 ppb |
| 2014-09-22 | 1610-032-0835 | 4.02 ppb |
| 2014-09-22 | 1610-033-0850 | 3.73 ppb |
| 2014-09-22 | 1610-039-0755 | 3.63 ppb |
| 2014-09-22 | 1610-040-1115 | 4.01 ppb |
| 2014-09-22 | 1610-041-1105 | 4.03 ppb |
| 2014-09-22 | 1610-042-1125 | 3.88 ppb |
| 2014-09-22 | 1610-043-1145 | 3.79 ppb |
| 2014-09-22 | 1610-044-1000 | 4.11 ppb |
| 2014-09-22 | 1610-045-0945 | 4.13 ppb |
| 2014-09-23 | 1610-029-0840 | 3.08 ppb |
| 2014-09-23 | 1610-030-0850 | 3.29 ppb |
| 2014-09-23 | 1610-031-0900 | 3.42 ppb |
| 2014-09-23 | 1610-034-0735 | 3.13 ppb |
| 2014-09-23 | 1610-035-0725 | 3.52 ppb |
| 2014-09-23 | 1610-037-0945 | 3.92 ppb |
| 2014-09-23 | 1610-049-1100 | 3.50 ppb |
| 2014-09-23 | 1610-053-1045 | 3.64 ppb |
| 2014-12-08 | 1610-027-0710 | 3.94 ppb |
| 2014-12-08 | 1610-032-0825 | 4.11 ppb |
| 2014-12-08 | 1610-033-0845 | 3.81 ppb |
| 2014-12-08 | 1610-039-0745 | 3.78 ppb |
| 2014-12-08 | 1610-040-1045 | 3.85 ppb |
| 2014-12-08 | 1610-041-1105 | 3.90 ppb |
| 2014-12-08 | 1610-042-1120 | 4.25 ppb |
| 2014-12-08 | 1610-043-1145 | 3.94 ppb |
| 2014-12-08 | 1610-044-0945 | 4.10 ppb |
| 2014-12-08 | 1610-045-0930 | 4.18 ppb |
| 2014-12-09 | 1610-029-0820 | 2.70 ppb |
| 2014-12-09 | 1610-030-0835 | 2.62 ppb |
| 2014-12-09 | 1610-031-0850 | 2.95 ppb |
| 2014-12-09 | 1610-034-0715 | 3.12 ppb |
| 2014-12-09 | 1610-035-0730 | 3.76 ppb |
| 2014-12-09 | 1610-037-0930 | 3.95 ppb |
| 2014-12-09 | 1610-049-1025 | 3.80 ppb |
| 2014-12-09 | 1610-053-1040 | 3.91 ppb |
| 2015-03-02 | 1610-027-0700 | 3.25 ppb |
| 2015-03-02 | 1610-032-0815 | 3.33 ppb |
| 2015-03-02 | 1610-033-0825 | 3.04 ppb |
| 2015-03-02 | 1610-039-0735 | 2.93 ppb |
| 2015-03-02 | 1610-040-1045 | 3.32 ppb |
| 2015-03-02 | 1610-041-1030 | 3.05 ppb |
| 2015-03-02 | 1610-042-1055 | 3.16 ppb |
| 2015-03-02 | 1610-043-1110 | 3.30 ppb |
| 2015-03-02 | 1610-044-0920 | 3.42 ppb |
| 2015-03-02 | 1610-045-0935 | 3.30 ppb |
| 2015-03-04 | 1610-029-0815 | 2.38 ppb |
| 2015-03-04 | 1610-030-0825 | 2.49 ppb |
| 2015-03-04 | 1610-031-0840 | 2.51 ppb |
| 2015-03-04 | 1610-034-0725 | 2.80 ppb |
| 2015-03-04 | 1610-035-0715 | 2.88 ppb |
| 2015-03-04 | 1610-037-0920 | 2.64 ppb |
| 2015-03-04 | 1610-049-1010 | 2.61 ppb |
| 2015-03-04 | 1610-053-1025 | 2.69 ppb |
| 2015-06-01 | 1610-027-0710 | 2.86 ppb |
| 2015-06-01 | 1610-032-0825 | 3.40 ppb |
| 2015-06-01 | 1610-033-0835 | 2.92 ppb |
| 2015-06-01 | 1610-039-0745 | 2.49 ppb |
| 2015-06-01 | 1610-040-1055 | 3.76 ppb |
| 2015-06-01 | 1610-041-1045 | 3.02 ppb |
| 2015-06-01 | 1610-042-1105 | 3.10 ppb |
| 2015-06-01 | 1610-043-1120 | 3.01 ppb |
| 2015-06-01 | 1610-044-0940 | 3.13 ppb |
| 2015-06-01 | 1610-045-0930 | 3.24 ppb |
| 2015-06-02 | 1610-029-0830 | 2.21 ppb |
| 2015-06-02 | 1610-030-0845 | 2.52 ppb |
| 2015-06-02 | 1610-031-0900 | 2.60 ppb |
| 2015-06-02 | 1610-034-0725 | 2.82 ppb |
| 2015-06-02 | 1610-035-0715 | 3.39 ppb |
| 2015-06-02 | 1610-037-0940 | 2.73 ppb |
| 2015-06-02 | 1610-049-1045 | 2.73 ppb |
| 2015-06-02 | 1610-053-1030 | 2.87 ppb |
| 2015-08-11 | 1610-001-0745 | ND |
| 2015-08-11 | 1610-003-1130 | ND |
| 2015-08-11 | 1610-008-0700 | ND |
| 2015-08-11 | 1610-012-0900 | ND |
| 2015-08-11 | 1610-015-0945 | ND |
| 2015-08-11 | 1610-017-0415 | ND |
| 2015-08-11 | 1610-018-0500 | ND |
| 2015-08-12 | 1610-002-0730 | ND |
| 2015-08-12 | 1610-006-1145 | ND |
| 2015-08-12 | 1610-007-0640 | ND |
| 2015-08-12 | 1610-019-1005 | ND |
| 2015-08-12 | 1610-020-1100 | ND |
| 2015-08-12 | 1610-050-0830 | ND |
| 2015-09-08 | 1610-027-0700 | 3.09 ppb |
| 2015-09-08 | 1610-032-0815 | 3.50 ppb |
| 2015-09-08 | 1610-033-0830 | 2.71 ppb |
| 2015-09-08 | 1610-039-0730 | 2.50 ppb |
| 2015-09-08 | 1610-040-1045 | 3.12 ppb |
| 2015-09-08 | 1610-041-1030 | 2.63 ppb |
| 2015-09-08 | 1610-042-1100 | 2.83 ppb |
| 2015-09-08 | 1610-043-1115 | 2.12 ppb |
| 2015-09-08 | 1610-044-0930 | 3.37 ppb |
| 2015-09-08 | 1610-045-0915 | 3.67 ppb |
| 2015-09-09 | 1610-029-0820 | 2.49 ppb |
| 2015-09-09 | 1610-030-0900 | 2.53 ppb |
| 2015-09-09 | 1610-031-0840 | 2.52 ppb |
| 2015-09-09 | 1610-034-0730 | 1.90 ppb |
| 2015-09-09 | 1610-035-0715 | 2.43 ppb |
| 2015-09-09 | 1610-049-0945 | 2.84 ppb |
| 2015-09-09 | 1610-049-1055 | 2.64 ppb |
| 2015-09-09 | 1610-053-1040 | 2.66 ppb |
| 2015-12-17 | 1610-027-1440 | 3.37 ppb |
| 2015-12-17 | 1610-029-0940 | 3.17 ppb |
| 2015-12-17 | 1610-030-0950 | 3.30 ppb |
| 2015-12-17 | 1610-031-1000 | 3.45 ppb |
| 2015-12-17 | 1610-032-1340 | 3.15 ppb |
| 2015-12-17 | 1610-033-1350 | 4.43 ppb |
| 2015-12-17 | 1610-034-0850 | 2.95 ppb |
| 2015-12-17 | 1610-035-0900 | 3.44 ppb |
| 2015-12-17 | 1610-037-1220 | 3.48 ppb |
| 2015-12-17 | 1610-039-1415 | 2.73 ppb |
| 2015-12-17 | 1610-040-1500 | 3.25 ppb |
| 2015-12-17 | 1610-041-1510 | 2.85 ppb |
| 2015-12-17 | 1610-042-1515 | 2.94 ppb |
| 2015-12-17 | 1610-043-1530 | 2.98 ppb |
| 2015-12-17 | 1610-044-1300 | 3.43 ppb |
| 2015-12-17 | 1610-045-1310 | 3.29 ppb |
| 2015-12-17 | 1610-049-1040 | 3.45 ppb |
| 2015-12-17 | 1610-053-1050 | 3.49 ppb |
| 2016-03-08 | 1610-027-1300 | 2.33 ppb |
| 2016-03-08 | 1610-032-1130 | 2.14 ppb |
| 2016-03-08 | 1610-033-1140 | 2.36 ppb |
| 2016-03-08 | 1610-039-1220 | 2.19 ppb |
| 2016-03-08 | 1610-040-1400 | 2.88 ppb |
| 2016-03-08 | 1610-041-1410 | 2.21 ppb |
| 2016-03-08 | 1610-042-1420 | 2.37 ppb |
| 2016-03-08 | 1610-043-1430 | 2.46 ppb |
| 2016-03-08 | 1610-044-1030 | 2.31 ppb |
| 2016-03-08 | 1610-045-1040 | 2.26 ppb |
| 2016-03-09 | 1610-029-1015 | 2.35 ppb |
| 2016-03-09 | 1610-030-1025 | 2.50 ppb |
| 2016-03-09 | 1610-031-1035 | 2.48 ppb |
| 2016-03-09 | 1610-034-1400 | 3.14 ppb |
| 2016-03-09 | 1610-035-1410 | 3.22 ppb |
| 2016-03-09 | 1610-037-1200 | 2.91 ppb |
| 2016-03-09 | 1610-049-1210 | 2.52 ppb |
| 2016-03-09 | 1610-053-0940 | 2.84 ppb |
| 2016-06-08 | 1610-027-1200 | 2.85 ppb |
| 2016-06-08 | 1610-032-1300 | 3.07 ppb |
| 2016-06-08 | 1610-033-1310 | 2.74 ppb |
| 2016-06-08 | 1610-039-1215 | 2.67 ppb |
| 2016-06-08 | 1610-040-1100 | 3.79 ppb |
| 2016-06-08 | 1610-041-1110 | 2.93 ppb |
| 2016-06-08 | 1610-042-1115 | 3.16 ppb |
| 2016-06-08 | 1610-043-1125 | 2.99 ppb |
| 2016-06-08 | 1610-044-1400 | 3.17 ppb |
| 2016-06-08 | 1610-045-1410 | 3.16 ppb |
| 2016-06-27 | 1610-029-1000 | 4.10 ppb |
| 2016-06-27 | 1610-030-1010 | 4.22 ppb |
| 2016-06-27 | 1610-031-1020 | 4.43 ppb |
| 2016-06-27 | 1610-034-0840 | 4.95 ppb |
| 2016-06-27 | 1610-035-0850 | 4.31 ppb |
| 2016-06-27 | 1610-037-1100 | 4.97 ppb |
| 2016-06-27 | 1610-049-1200 | 4.36 ppb |
| 2016-06-27 | 1610-053-1210 | 4.37 ppb |
| 2016-08-30 | 1610-001-1340 | ND |
| 2016-08-30 | 1610-002-0800 | ND |
| 2016-08-30 | 1610-003-0920 | ND |
| 2016-08-30 | 1610-012-0838 | ND |
| 2016-08-30 | 1610-015-0950 | 3.90 ppb |
| 2016-08-30 | 1610-017-1030 | ND |
| 2016-08-30 | 1610-018-0850 | ND |
| 2016-08-31 | 1610-006-0600 | ND |
| 2016-08-31 | 1610-007-0930 | ND |
| 2016-08-31 | 1610-008-1045 | ND |
| 2016-08-31 | 1610-020-0515 | ND |
| 2016-08-31 | 1610-050-0800 | ND |
| 2016-09-27 | 1610-029-1010 | 3.35 ppb |
| 2016-09-27 | 1610-030-1020 | 3.41 ppb |
| 2016-09-27 | 1610-031-1030 | 3.33 ppb |
| 2016-09-27 | 1610-034-0910 | 3.38 ppb |
| 2016-09-27 | 1610-035-0920 | 3.57 ppb |
| 2016-09-27 | 1610-037-1100 | 3.56 ppb |
| 2016-09-27 | 1610-049-1220 | 3.49 ppb |
| 2016-09-27 | 1610-053-1230 | 3.67 ppb |
| 2016-09-28 | 1610-027-1020 | 3.23 ppb |
| 2016-09-28 | 1610-032-1120 | 3.31 ppb |
| 2016-09-28 | 1610-033-1130 | 3.34 ppb |
| 2016-09-28 | 1610-039-1045 | 3.03 ppb |
| 2016-09-28 | 1610-040-0910 | 3.55 ppb |
| 2016-09-28 | 1610-041-0920 | 3.29 ppb |
| 2016-09-28 | 1610-042-0930 | 3.27 ppb |
| 2016-09-28 | 1610-043-0940 | 3.42 ppb |
| 2016-09-28 | 1610-044-1215 | 3.44 ppb |
| 2016-09-28 | 1610-045-1225 | 3.52 ppb |
| 2016-10-12 | 1610-019-0900 | ND |
| 2016-11-09 | 1610-015-0810 | ND |
| 2016-12-14 | 1610-029-1000 | 3.68 ppb |
| 2016-12-14 | 1610-030-1010 | 3.67 ppb |
| 2016-12-14 | 1610-031-1020 | 3.93 ppb |
| 2016-12-14 | 1610-034-0900 | 3.64 ppb |
| 2016-12-14 | 1610-035-0910 | 3.89 ppb |
| 2016-12-14 | 1610-037-1120 | 3.90 ppb |
| 2016-12-14 | 1610-049-1200 | 3.78 ppb |
| 2016-12-14 | 1610-053-1210 | 3.86 ppb |
| 2016-12-20 | 1610-027-1150 | ND |
| 2016-12-20 | 1610-032-1020 | 3.57 ppb |
| 2016-12-20 | 1610-033-1030 | ND |
| 2016-12-20 | 1610-039-1120 | ND |
| 2016-12-20 | 1610-040-1235 | ND |
| 2016-12-20 | 1610-041-1240 | ND |
| 2016-12-20 | 1610-042-1245 | ND |
| 2016-12-20 | 1610-043-1300 | ND |
| 2016-12-20 | 1610-044-0930 | 3.62 ppb |
| 2016-12-20 | 1610-045-0940 | 3.58 ppb |
| 2017-03-14 | 1610-029-1000 | ND |
| 2017-03-14 | 1610-030-1010 | ND |
| 2017-03-14 | 1610-031-1020 | ND |
| 2017-03-14 | 1610-034-0910 | ND |
| 2017-03-14 | 1610-035-0920 | ND |
| 2017-03-14 | 1610-037-1115 | ND |
| 2017-03-14 | 1610-049-1210 | ND |
| 2017-03-14 | 1610-053-1220 | ND |
| 2017-03-16 | 1610-027-1130 | ND |
| 2017-03-16 | 1610-032-1040 | ND |
| 2017-03-16 | 1610-033-1050 | ND |
| 2017-03-16 | 1610-039-1115 | ND |
| 2017-03-16 | 1610-040-1150 | ND |
| 2017-03-16 | 1610-041-1200 | ND |
| 2017-03-16 | 1610-042-1210 | ND |
| 2017-03-16 | 1610-043-1220 | ND |
| 2017-03-16 | 1610-044-0940 | ND |
| 2017-03-16 | 1610-045-0950 | ND |
| 2017-06-06 | 1610-027-1200 | 1.76 ppb |
| 2017-06-06 | 1610-032-1100 | 2.26 ppb |
| 2017-06-06 | 1610-033-1110 | 1.85 ppb |
| 2017-06-06 | 1610-039-1140 | 1.78 ppb |
| 2017-06-06 | 1610-040-1230 | 2.24 ppb |
| 2017-06-06 | 1610-041-1240 | 2.01 ppb |
| 2017-06-06 | 1610-042-1250 | 1.91 ppb |
| 2017-06-06 | 1610-043-1300 | 1.77 ppb |
| 2017-06-06 | 1610-044-1010 | 2.48 ppb |
| 2017-06-06 | 1610-045-1020 | 2.47 ppb |
| 2017-06-07 | 1610-029-1020 | 2.76 ppb |
| 2017-06-07 | 1610-030-1030 | 2.16 ppb |
| 2017-06-07 | 1610-031-1040 | 2.29 ppb |
| 2017-06-07 | 1610-034-0850 | 2.64 ppb |
| 2017-06-07 | 1610-035-0900 | 2.44 ppb |
| 2017-06-07 | 1610-037-1125 | 2.52 ppb |
| 2017-06-07 | 1610-049-1155 | 2.67 ppb |
| 2017-06-07 | 1610-053-1200 | 2.84 ppb |
| 2017-08-28 | 1610-001-0815 | ND |
| 2017-08-28 | 1610-002-0950 | ND |
| 2017-08-28 | 1610-003-0730 | ND |
| 2017-08-28 | 1610-015-0845 | ND |
| 2017-08-28 | 1610-017-0920 | ND |
| 2017-08-29 | 1610-006-0610 | ND |
| 2017-08-29 | 1610-007-1030 | ND |
| 2017-08-29 | 1610-008-0930 | ND |
| 2017-08-29 | 1610-019-1145 | ND |
| 2017-08-29 | 1610-020-0515 | ND |
| 2017-08-29 | 1610-050-0745 | ND |
| 2017-09-13 | 1610-029-1030 | 2.95 ppb |
| 2017-09-13 | 1610-030-1040 | 2.72 ppb |
| 2017-09-13 | 1610-031-1050 | 2.87 ppb |
| 2017-09-13 | 1610-034-0930 | 2.55 ppb |
| 2017-09-13 | 1610-035-0940 | 2.84 ppb |
| 2017-09-13 | 1610-037-1130 | 2.94 ppb |
| 2017-09-13 | 1610-049-1210 | 3.59 ppb |
| 2017-09-13 | 1610-053-1220 | 3.89 ppb |
| 2017-09-25 | 1610-027-1225 | 1.77 ppb |
| 2017-09-25 | 1610-032-1145 | 2.41 ppb |
| 2017-09-25 | 1610-033-1155 | 1.63 ppb |
| 2017-09-25 | 1610-039-1215 | 1.94 ppb |
| 2017-09-25 | 1610-040-1250 | 2.34 ppb |
| 2017-09-25 | 1610-041-1255 | 2.02 ppb |
| 2017-09-25 | 1610-042-1300 | 1.89 ppb |
| 2017-09-25 | 1610-043-1310 | 1.92 ppb |
| 2017-09-25 | 1610-044-1100 | 2.95 ppb |
| 2017-09-25 | 1610-045-1110 | 3.19 ppb |
| 2017-09-28 | 1610-006-0840 | ND |
| 2017-11-28 | 1610-029-1015 | 1.37 ppb |
| 2017-11-28 | 1610-030-1025 | 1.75 ppb |
| 2017-11-28 | 1610-031-1035 | 1.87 ppb |
| 2017-11-28 | 1610-034-0910 | 1.58 ppb |
| 2017-11-28 | 1610-035-0920 | 1.47 ppb |
| 2017-11-28 | 1610-037-1110 | 1.63 ppb |
| 2017-11-28 | 1610-049-1200 | 2.16 ppb |
| 2017-11-28 | 1610-053-1210 | 2.06 ppb |
| 2017-11-29 | 1610-027-1205 | 1.47 ppb |
| 2017-11-29 | 1610-032-1020 | 2.03 ppb |
| 2017-11-29 | 1610-033-1030 | 1.90 ppb |
| 2017-11-29 | 1610-039-1130 | 1.79 ppb |
| 2017-11-29 | 1610-040-1230 | 1.51 ppb |
| 2017-11-29 | 1610-041-1240 | 2.15 ppb |
| 2017-11-29 | 1610-042-1245 | 1.21 ppb |
| 2017-11-29 | 1610-043-1250 | 1.39 ppb |
| 2017-11-29 | 1610-044-0940 | 1.56 ppb |
| 2017-11-29 | 1610-045-0950 | 2.07 ppb |
| 2018-03-06 | 1610-029-1010 | 1.42 ppb |
| 2018-03-06 | 1610-030-1020 | 1.84 ppb |
| 2018-03-06 | 1610-031-1030 | 2.56 ppb |
| 2018-03-06 | 1610-034-0920 | 3.77 ppb |
| 2018-03-06 | 1610-035-0930 | 3.22 ppb |
| 2018-03-06 | 1610-037-1100 | 3.03 ppb |
| 2018-03-06 | 1610-049-1210 | 2.52 ppb |
| 2018-03-06 | 1610-053-1220 | 2.59 ppb |
| 2018-03-28 | 1610-027-1200 | 2.42 ppb |
| 2018-03-28 | 1610-032-1100 | 2.39 ppb |
| 2018-03-28 | 1610-033-1110 | 2.39 ppb |
| 2018-03-28 | 1610-039-1140 | 2.06 ppb |
| 2018-03-28 | 1610-040-1215 | 2.80 ppb |
| 2018-03-28 | 1610-041-1220 | 2.07 ppb |
| 2018-03-28 | 1610-042-1230 | 2.31 ppb |
| 2018-03-28 | 1610-043-1240 | 2.25 ppb |
| 2018-03-28 | 1610-044-1010 | 2.85 ppb |
| 2018-03-28 | 1610-045-1020 | 2.86 ppb |
| 2018-06-14 | 1610-029-0950 | 2.26 ppb |
| 2018-06-14 | 1610-030-1000 | 2.30 ppb |
| 2018-06-14 | 1610-031-1010 | 2.86 ppb |
| 2018-06-14 | 1610-034-0835 | 2.55 ppb |
| 2018-06-14 | 1610-035-0840 | 2.58 ppb |
| 2018-06-14 | 1610-037-1050 | 3.37 ppb |
| 2018-06-14 | 1610-049-1200 | 3.38 ppb |
| 2018-06-14 | 1610-053-1210 | 3.31 ppb |
| 2018-06-19 | 1610-027-1150 | 3.36 ppb |
| 2018-06-19 | 1610-032-1040 | 3.12 ppb |
| 2018-06-19 | 1610-033-1050 | 2.99 ppb |
| 2018-06-19 | 1610-039-1130 | 2.70 ppb |
| 2018-06-19 | 1610-040-1215 | 3.91 ppb |
| 2018-06-19 | 1610-041-1220 | 2.97 ppb |
| 2018-06-19 | 1610-042-1230 | 3.32 ppb |
| 2018-06-19 | 1610-043-1240 | 3.58 ppb |
| 2018-06-19 | 1610-044-1000 | 3.17 ppb |
| 2018-06-19 | 1610-045-1010 | 3.31 ppb |
| 2018-08-27 | 1610-007-1110 | ND |
| 2018-08-27 | 1610-008-1130 | ND |
| 2018-08-27 | 1610-050-0930 | ND |
| 2018-09-04 | 1610-002-1230 | ND |
| 2018-09-04 | 1610-003-0950 | ND |
| 2018-09-04 | 1610-006-0830 | ND |
| 2018-09-04 | 1610-015-0900 | 2.74 ppb |
| 2018-09-04 | 1610-017-0935 | ND |
| 2018-09-04 | 1610-020-0915 | ND |
| 2018-09-10 | 1610-019-0910 | ND |
| 2018-09-11 | 1610-001-1115 | ND |
| 2018-09-19 | 1610-029-1030 | 2.33 ppb |
| 2018-09-19 | 1610-030-1040 | 2.19 ppb |
| 2018-09-19 | 1610-031-1050 | 2.67 ppb |
| 2018-09-19 | 1610-034-0945 | 1.97 ppb |
| 2018-09-19 | 1610-035-0955 | 2.34 ppb |
| 2018-09-19 | 1610-037-1120 | 2.66 ppb |
| 2018-09-19 | 1610-049-1255 | 2.96 ppb |
| 2018-09-19 | 1610-053-1310 | 2.80 ppb |
| 2018-09-25 | 1610-027-1310 | 3.04 ppb |
| 2018-09-25 | 1610-032-1115 | 3.71 ppb |
| 2018-09-25 | 1610-033-1125 | 3.10 ppb |
| 2018-09-25 | 1610-039-1210 | 2.53 ppb |
| 2018-09-25 | 1610-040-1320 | 3.49 ppb |
| 2018-09-25 | 1610-041-1330 | 3.96 ppb |
| 2018-09-25 | 1610-042-1335 | 3.55 ppb |
| 2018-09-25 | 1610-043-1340 | 4.11 ppb |
| 2018-09-25 | 1610-044-1030 | 2.83 ppb |
| 2018-09-25 | 1610-045-1040 | 5.34 ppb |
| 2018-10-16 | 1610-001-0930 | ND |
| 2018-12-06 | 1610-015-0800 | ND |
| 2018-12-18 | 1610-029-1010 | 3.01 ppb |
| 2018-12-18 | 1610-031-1030 | 3.18 ppb |
| 2018-12-18 | 1610-034-0905 | 3.06 ppb |
| 2018-12-18 | 1610-035-0910 | 3.43 ppb |
| 2018-12-18 | 1610-037-1100 | 3.36 ppb |
| 2018-12-18 | 1610-049-1150 | 3.03 ppb |
| 2018-12-18 | 1610-053-1200 | 3.34 ppb |
| 2018-12-19 | 1610-027-1010 | 2.86 ppb |
| 2018-12-19 | 1610-032-1130 | 3.38 ppb |
| 2018-12-19 | 1610-033-1120 | 3.15 ppb |
| 2018-12-19 | 1610-039-1045 | 2.37 ppb |
| 2018-12-19 | 1610-040-0910 | 3.65 ppb |
| 2018-12-19 | 1610-041-0920 | 2.74 ppb |
| 2018-12-19 | 1610-042-0930 | 3.19 ppb |
| 2018-12-19 | 1610-043-0940 | 2.60 ppb |
| 2018-12-19 | 1610-044-1230 | 3.58 ppb |
| 2018-12-19 | 1610-045-1240 | 3.59 ppb |
| 2018-12-27 | 1610-030-0815 | ND |
| 2019-03-12 | 1610-029-1045 | 1.09 ppb |
| 2019-03-12 | 1610-030-1055 | 1.08 ppb |
| 2019-03-12 | 1610-031-1100 | 1.28 ppb |
| 2019-03-12 | 1610-034-0945 | 1.31 ppb |
| 2019-03-12 | 1610-035-1000 | 1.48 ppb |
| 2019-03-12 | 1610-037-1200 | 1.02 ppb |
| 2019-03-12 | 1610-049-1300 | 1.07 ppb |
| 2019-03-12 | 1610-053-1310 | 1.13 ppb |
| 2019-03-13 | 1610-027-1230 | 1.85 ppb |
| 2019-03-13 | 1610-032-1120 | 1.76 ppb |
| 2019-03-13 | 1610-033-1130 | 1.45 ppb |
| 2019-03-13 | 1610-039-1215 | 1.74 ppb |
| 2019-03-13 | 1610-043-1400 | 1.14 ppb |
| 2019-03-13 | 1610-044-1010 | 1.89 ppb |
| 2019-03-13 | 1610-045-1020 | 2.00 ppb |
| 2019-03-29 | 1610-040-1010 | 1.87 ppb |
| 2019-03-29 | 1610-041-1000 | 1.80 ppb |
| 2019-03-29 | 1610-042-1020 | 1.73 ppb |
| 2019-06-19 | 1610-029-1040 | 3.42 ppb |
| 2019-06-19 | 1610-030-1050 | 3.94 ppb |
| 2019-06-19 | 1610-031-1100 | 3.75 ppb |
| 2019-06-19 | 1610-034-0920 | 3.57 ppb |
| 2019-06-19 | 1610-035-0930 | 3.21 ppb |
| 2019-06-19 | 1610-037-1150 | 4.02 ppb |
| 2019-06-19 | 1610-049-1230 | 3.63 ppb |
| 2019-06-19 | 1610-053-1240 | 4.16 ppb |
| 2019-06-25 | 1610-027-1115 | 3.61 ppb |
| 2019-06-25 | 1610-032-1030 | 3.64 ppb |
| 2019-06-25 | 1610-033-1040 | 3.63 ppb |
| 2019-06-25 | 1610-039-1100 | 3.33 ppb |
| 2019-06-25 | 1610-040-1215 | 3.88 ppb |
| 2019-06-25 | 1610-041-1220 | 3.77 ppb |
| 2019-06-25 | 1610-042-1230 | 4.28 ppb |
| 2019-06-25 | 1610-043-1240 | 3.88 ppb |
| 2019-06-25 | 1610-044-0945 | 4.57 ppb |
| 2019-06-25 | 1610-045-0950 | 4.29 ppb |
| 2019-09-09 | 1610-006-0810 | ND |
| 2019-09-09 | 1610-007-1100 | ND |
| 2019-09-09 | 1610-008-0930 | ND |
| 2019-09-09 | 1610-020-0850 | ND |
| 2019-09-09 | 1610-050-0730 | ND |
| 2019-09-10 | 1610-001-1040 | ND |
| 2019-09-10 | 1610-002-0810 | ND |
| 2019-09-10 | 1610-003-0700 | ND |
| 2019-09-10 | 1610-015-0720 | ND |
| 2019-09-10 | 1610-017-0740 | ND |
| 2019-09-17 | 1610-029-1020 | 2.78 ppb |
| 2019-09-17 | 1610-030-1030 | 2.98 ppb |
| 2019-09-17 | 1610-031-1040 | 2.67 ppb |
| 2019-09-17 | 1610-034-0905 | 3.42 ppb |
| 2019-09-17 | 1610-035-0915 | 3.47 ppb |
| 2019-09-17 | 1610-037-1110 | 2.93 ppb |
| 2019-09-17 | 1610-049-1210 | 3.18 ppb |
| 2019-09-17 | 1610-053-1215 | 3.05 ppb |
| 2019-09-24 | 1610-027-1115 | 2.69 ppb |
| 2019-09-24 | 1610-032-1040 | 3.13 ppb |
| 2019-09-24 | 1610-033-1045 | 2.39 ppb |
| 2019-09-24 | 1610-039-1100 | 2.00 ppb |
| 2019-09-24 | 1610-040-1150 | 2.47 ppb |
| 2019-09-24 | 1610-041-1155 | 3.12 ppb |
| 2019-09-24 | 1610-042-1200 | 2.91 ppb |
| 2019-09-24 | 1610-043-1230 | 2.87 ppb |
| 2019-09-24 | 1610-044-1000 | 3.22 ppb |
| 2019-09-24 | 1610-045-1010 | 3.08 ppb |
| 2019-11-21 | 1610-034-0930 | 2.22 ppb |
| 2019-11-21 | 1610-035-0940 | 2.48 ppb |
| 2019-12-11 | 1610-019-0945 | ND |
| 2019-12-18 | 1610-027-1245 | 2.03 ppb |
| 2019-12-18 | 1610-029-0905 | 2.06 ppb |
| 2019-12-18 | 1610-030-0910 | 1.97 ppb |
| 2019-12-18 | 1610-031-0915 | 2.07 ppb |
| 2019-12-18 | 1610-032-1215 | 1.91 ppb |
| 2019-12-18 | 1610-033-1220 | 2.36 ppb |
| 2019-12-18 | 1610-037-1020 | 2.32 ppb |
| 2019-12-18 | 1610-039-1235 | 2.14 ppb |
| 2019-12-18 | 1610-040-1305 | 2.12 ppb |
| 2019-12-18 | 1610-041-1310 | 2.20 ppb |
| 2019-12-18 | 1610-043-1315 | 2.37 ppb |
| 2019-12-18 | 1610-043-1320 | 2.32 ppb |
| 2019-12-18 | 1610-044-1135 | 2.58 ppb |
| 2019-12-18 | 1610-045-1140 | 2.34 ppb |
| 2019-12-18 | 1610-049-1040 | 1.98 ppb |
| 2019-12-18 | 1610-053-1045 | 2.29 ppb |